| User opinion |
Comment |
Is Approved? |
|---|
| INCORRECT | from collector of t1, r4 has to go to GND. | APPROVED |
| INCORRECT | there is no data control that is when sending from vehicle it still flows back to yhe computer . an aditinal transitor connected to the rts pin to control the data flow. | APPROVED |
| CORRECT | in may car (Golf 4 1.9TDI) works fine!!! | APPROVED |
| CORRECT | The 1st report says that from collector of t1, r4 has to go to GND. R4 to TX line seems to me to be also correct. The TX line provides a source of low voltage when needed (when high, RX must be also high). Furthermore, as RS232 wants negative voltage rather than zero for low level, it may be better. | APPROVED
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